公开(公告)号：US07583765B2

公开(公告)日：2009-09-01

申请号：US11114441

申请日：2005-04-26

申请人： Norman J. Beamish

发明人： Norman J. Beamish

IPC分类号： H03D1/04

CPC分类号： H04B1/30 ,  H03D3/008

摘要： A DC offset detection and cancellation system for a receiver is disclosed. The DC offset detection and cancellation system comprises a downconverter configured to downconvert a received signal to a baseband level signal, the downconverted signal having a first sampling rate, a filter system configured to filter the downconverted received signal at the first sampling rate, and estimator logic configured to sample the downconverted received signal at the first sampling rate to develop a DC estimate signal representative of any direct current (DC) component present on the downconverted received signal, the filter system configured to develop a second sampling rate, where the first sampling rate is significantly higher than the second sampling rate.

摘要翻译： 公开了一种用于接收机的DC偏移检测和消除系统。 DC偏移检测和消除系统包括下变频器，其被配置为将接收到的信号下变频为基带电平信号，下变频信号具有第一采样率，被配置为以第一采样率对下变频的接收信号进行滤波的滤波器系统以及估计器逻辑 被配置为以所述第一采样率对所述经下变频的接收信号进行采样，以形成表示所述下变频接收信号上存在的任何直流（DC）分量的DC估计信号，所述滤波器系统被配置为开发第二采样率，其中所述第一采样率 明显高于第二次采样率。

公开(公告)号：US07565150B1

公开(公告)日：2009-07-21

申请号：US11823290

申请日：2007-06-27

申请人： Norman J. Beamish ,  Arun Sukheja ,  Mark S. Frank

发明人： Norman J. Beamish ,  Arun Sukheja ,  Mark S. Frank

IPC分类号： H04W28/02 ,  H04W74/02

CPC分类号： H04L1/0045 ,  H04L1/0025 ,  H04L1/0073

摘要： In one embodiment, a method is provided of communicating in a wireless communication system. The method comprises (a) setting a decrement burst variable to be equal to a predetermined number representing a number of bursts of data from which to prematurely decode a USF codeword, (b) receiving a received burst of data comprising USF related data related to a portion of a USF codeword, (c) extracting said USF related data from said equalized received burst of data, (d) determining if a burst number variable is equal to said decrement burst variable, (e) incrementing said burst number variable and repeating (b) through (d) if said burst number variable is not equal to said decrement burst variable, and (f) decoding said USF codeword if said burst number variable is equal to said decrement burst variable.

摘要翻译： 在一个实施例中，提供了一种在无线通信系统中进行通信的方法。 该方法包括：（a）将减量突发变量设置为等于表示从其中过早地解码USF码字的数据突发的数量的预定数量，（b）接收包括与USF相关的USF相关数据的接收的数据突发 USF码字的部分，（c）从所述均衡接收的数据突发中提取所述USF相关数据，（d）确定突发数量变量是否等于所述递减突发变量，（e）增加所述突发数量变量并重复（ b）到（d）如果所述突发数量变量不等于所述递减突发变量，并且（f）如果所述突发数字变量等于所述递减突发变量，则解码所述USF码字。

公开(公告)号：US07254381B1

公开(公告)日：2007-08-07

申请号：US10969109

申请日：2004-10-19

申请人： Norman J. Beamish ,  Arun Sukheja ,  Mark S. Frank

发明人： Norman J. Beamish ,  Arun Sukheja ,  Mark S. Frank

IPC分类号： H04Q7/32

CPC分类号： H04L1/0045 ,  H04L1/0025 ,  H04L1/0073

摘要： In one embodiment, a method is provided of communicating in a wireless communication system. The method comprises (a) setting a decrement burst variable to be equal to a predetermined number representing a number of bursts of data from which to prematurely decode a USF codeword, (b) receiving a received burst of data comprising USF related data related to a portion of a USF codeword, (c) extracting said USF related data from said equalized received burst of data, (d) determining if a burst number variable is equal to said decrement burst variable, (e) incrementing said burst number variable and repeating (b) through (d) if said burst number variable is not equal to said decrement burst variable, and (f) decoding said USF codeword if said burst number variable is equal to said decrement burst variable.

摘要翻译： 在一个实施例中，提供了一种在无线通信系统中进行通信的方法。 该方法包括：（a）将减量突发变量设置为等于表示从其中过早地解码USF码字的数据突发的数量的预定数量，（b）接收包括与USF相关的USF相关数据的接收的数据突发 USF码字的部分，（c）从所述均衡接收的数据突发中提取所述USF相关数据，（d）确定突发数量变量是否等于所述递减突发变量，（e）增加所述突发数量变量并重复（ b）到（d）如果所述突发数量变量不等于所述递减突发变量，并且（f）如果所述突发数字变量等于所述递减突发变量，则解码所述USF码字。

公开(公告)号：US06694143B1

公开(公告)日：2004-02-17

申请号：US09658729

申请日：2000-09-11

申请人： Norman J. Beamish ,  Robert Saunders ,  John S. Walley ,  Hon M. Yung

发明人： Norman J. Beamish ,  Robert Saunders ,  John S. Walley ,  Hon M. Yung

IPC分类号： H04Q720

CPC分类号： H04W88/06 ,  H04L41/082 ,  H04M1/6066 ,  H04M1/72566 ,  H04M1/72572 ,  H04M19/045 ,  H04M2250/02 ,  H04W28/18 ,  H04W84/10

摘要： This invention provides a communication device that is capable of interacting with a local wireless communication system when the communication device is within range of the local wireless communication system for controlling operating characteristics of the communication device. The communication device may include cellular telephones, mobile phones, voice pagers, data pagers, mobile computers, palm computers, mobile facsimile machines, mobile appliances, multimedia devices and other wireless communication devices. The local wireless communication system may be located in any site such as an office building, home, hotel, concert hall, movie theater, restaurant, conference room, or public transportation systems. When the local wireless communication system determines that a command is to be sent, the system may transmit a command to all communication devices that are within range of the local wireless communication system, or to a subset of them. For example, the local wireless communication system in an airplane may send a command to all cell phones within its range to turn off to prevent harmful interference with the airplanes communication system. As another example, a local wireless communication system in a concert hall may send a command to change a wireless communication device from ringing mode to vibrate mode during a concert. The command may be any kind of command. The command can change an operating characteristic of the wireless communication device while optionally giving the device the continued ability to communicate and interact with other communication networks. In another alternative, a wireless communication device such as a cell phone may receive information about a user's hearing aid and its “prescription” from a local wireless communication system and change its output characteristics to emulate the hearing aid so that the user can use the wireless communication device without the hearing aid. Also, wireless communication device may communicate with a local wireless communication system to turn off a user's headphone when the wireless communication device receives an incoming call or data signal.

公开(公告)号：US06507734B1

公开(公告)日：2003-01-14

申请号：US09216086

申请日：1998-12-18

申请人： Doug M. Berger ,  Norman J. Beamish ,  Xiaohua “Joseph” Xie

发明人： Doug M. Berger ,  Norman J. Beamish ,  Xiaohua “Joseph” Xie

IPC分类号： H04M166

CPC分类号： H04M1/66

摘要： Methods and apparatus for establishing secure wireless links between a handset and a base station in cordless telephone systems are described. A method of generating a secure wireless link between a handset and a base station includes initiating a linking procedure, generating a security code, trasmitting the security code from a sound transmitter, receiving the security code at a sound receiver and then establishing a radio frequency link between the handset and the base station utilizing the security code. A cordless telephone system capable of generating a secure wireless link includes both a handset and a base station. The handset includes a control circuit, an rf transmitter and an rf receiver coupled to the control circuit along with a sound receiver also coupled to the control circuit. The base station includes a control circuit, a code generation circuit coupled to the control circuit, a sound transmitter coupled to the control circuit for transmitting a code generated by the code generation circuit, and an rf transmitter and an rf receiver coupled to the control circuit.

摘要翻译： 描述了在无绳电话系统中在手机和基站之间建立安全无线链路的方法和装置。 一种在手机和基站之间生成安全无线链路的方法包括启动链接过程，生成安全代码，从声音发送器发送安全码，在声音接收器处接收安全码，然后建立射频链路 在手机和基站之间使用安全码。 能够生成安全无线链路的无绳电话系统包括手机和基站。 手机包括控制电路，射频发射机和连接到控制电路的射频接收机以及还耦合到控制电路的声音接收器。 基站包括控制电路，耦合到控制电路的代码生成电路，耦合到控制电路的发送器，用于发送代码生成电路产生的代码，以及耦合到控制电路的rf发送器和rf接收器 。

公开(公告)号：US06404863B1

公开(公告)日：2002-06-11

申请号：US08923447

申请日：1997-09-04

申请人： Norman J. Beamish

发明人： Norman J. Beamish

IPC分类号： H04M164

CPC分类号： H04M1/573 ,  H04M3/428

摘要： The invention is a method of receiving digital data from a Local Switching Office (LSO) on first party equipment that is communicating, in an off-hook state, via the LSO with second party equipment. The method presumes that the first party equipment has a telephone line interface that interfaces with a telephone line and an acoustic transducer interface with a loudspeaker and a microphone. The method generally includes the steps of receiving an alert signal from the LSO, temporarily preventing a first party signal from being transmitted to the line interface after receiving the alert signal, sending an acknowledgment signal to the LSO via the line interface, transmitting a pre-determined comfort signal to the loudspeaker via the acoustic transducer interface while receiving the digital data via the telephone line interface to inform the user that the digital data is being received while relieving the user from having to hear the actual reception of the digital data, or from listening to a silent loudspeaker, and finally, after receiving the digital data via the telephone line interface, restoring the first party signal through the line interface, and no longer transmitting the predetermined comfort signal to the loudspeaker. The digital data may contain, for example, caller ID information as transmitted to a Type 2 telephone capable of receiving such information.

摘要翻译： 本发明是一种在第一方设备上从本地交换局（LSO）接收数字数据的方法，所述第一方设备在摘机状态下经由与第二方设备的LSO进行通信。 该方法假设第一方设备具有与电话线接口的电话线路接口和与扬声器和麦克风的声学换能器接口。 该方法通常包括从LSO接收警报信号的步骤，在接收到警报信号之后暂时阻止第一方信号被发送到线路接口，经由线路接口向LSO发送确认信号， 通过声学传感器接口确定舒适信号到扬声器，同时经由电话线接口接收数字数据，以通知用户正在接收数字数据，同时减轻用户不必听到数字数据的实际接收，或从 听静音扬声器，最后通过电话线接口接收数字数据后，通过线路接口恢复第一方信号，不再向扬声器发送预定的舒适信号。 数字数据可以包含例如发送到能够接收这种信息的类型2电话的呼叫者ID信息。